Re: [quicwg/base-drafts] Restrict ACK-clocking to ACK-only frames. (#1231)

[ekr <[e-mail]>]

ekr commented on this pull request.



>  
 To limit ACK blocks to those that have not yet been received by the sender, the
 receiver SHOULD track which ACK frames have been acknowledged by its peer.  Once
 an ACK frame has been acknowledged, the packets it acknowledges SHOULD NOT be
 acknowledged again.
 
-A receiver that is only sending ACK frames will not receive acknowledgments for
-its packets.  Sending an occasional MAX_DATA or MAX_STREAM_DATA frame as data is
-received will ensure that acknowledgements are generated by a peer.  Otherwise,
-an endpoint MAY send a PING frame once per RTT to solicit an acknowledgment.
+Because ACK-only packets are not acknowledged, a receiver that is only
+sending ACK frames will only receive acknowledgements for its packets
+if the sender piggybacks them on other packets. In order to enable

That part of the text is correct. What's not correct is the claim that you will not receive ACKs if you do not do so.

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